reese



(No Model.)

2 sheets-' s'h'eet' 1; A1. REE-SE.

OAR BRAKE.

Pateni gd Au (No Model.)

2 sheets sheet 2.

A. REESE.

OAR BRAKE.

No. 387,695. Patented Aug; 14,, 1888.

Wimaus:

N PETERS. PhotoLilhognpher. Wuhinglm. EC-

NITE STATES PATENT Trice.

ABRAM REESE, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE REESE,

SAFETY BRAKE CO., (LIMITED) OF SAME PLACE.

CAR-BRAKE.

EPECIPICATION forming part of Letters Patent No. 387,695, dated August 14, 1888.

Application filed December 5, 1887. Serial No. 257,054.

To all whom it may concern:

Be it known that I, ABRAM REEsE, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in CarBrakes; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to car brakes, and more especially to that class in which the brakes are applied by the impact of the preceding car on the draw-head.

In a patent granted to me July 7, 1885, No. 821,757, I have shown a brake of this class in which a movable plate or filling-block extends up through the draw-head in front of the drawbar, so that the latter is caused to move back with the draw-head when the plate or block is in its raised position and impinge against a brake-operating lever interposed in the path of said draw-bar and connected to the brakes by suitable mechanism. By raising this block or plate,which extends up into the draw-head, the draw-bar moves with the draw-head and applies the brakes, and by lowering the block the draw-bar is permitted to reeede in the draw-head when the latter is forced backward and the brakes are not applied.

My present invention is an improvement on this arrangement, in that a recessed plate or block is employed instead of a plane plate to extend up through the draw-head and bear against the head of the draw-bar, so that by raising this block a small distance the recess in the block is brought opposite the draw-bar head and the latter can recede therein without affecting the brakes, which arrangement is simpler and requires less space for its operation than that shown in the patent above referred to.

My present invention also has for its object to provide a brake of the class heretofore described for a type of cars to which the form of brake-operating mechanism described in the aforesaid patent is inapplicable;

The type of cars to whichI refer are those in which each draw-bar extends from the drawhead to the center of the car, where thetwo drawbars are connected by a yoke, so that the pulling strain on the front draw-head is transmitted to the rear draw-head, and thus the pulling effected from the rear end of the car. All of the existing brakes which belong to the class (No model.)

to which my invention pertains-that is, those which are applied by impact on the drawhead-eannot be applied to this type of car, because the pulling of the car on the front draw-head causes the rear drawhead to re cede, which in the construction heretofore referred to would cause the brakes to be applied at a time when it was not desired.

Mypresentinvention obviates this difficulty; and to these ends it also consists in placing back of the end of each draw-bar and in the path of the same a pivoted lever and connecting these levers bya link to anotherlever between the same, which lever is connected at 6 5 its opposite ends by suitable rods to the brake, as will be more fully hereinafter set forth.

My invention also consists of certain other improvements, all of which will be more fully hereinafter set forth.

To enable others skilled in the art to make and use my invention, I will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a plan view of the under side of a portion of a car with my improved brake applied thereto. Fig. 2 is a vertical sectional view through the draw-head, showing the position of the filling-block when the brake is not to be applied. Fig. 3 shows a like view so when the parts are in the position for the application of the brakes. Fig. 4 is a detail view showing the manner of connecting the two draw-bars at the center of the cars, and Figs. 5 and 6 show details of the position of the brake-operating levers.

Like letters refer to like parts in each of the figures of the drawings.

The ear-body a is 01' the usual orany desired construction, and has the usual truck, 6, and 0 draft-timbers c. Sliding in-suitable guides on these draft-timbers or other suitable portion of the car-frame, at each end of the car, is the draw-head a, which is of the usual construe tion-that is, having the cavity (1 and the 5 hole 6 at its rear end, through which passes the end of a headed draw-bar,f, the latter being rigidly attached to the draw-head at one end of the car-,and at the other endis arranged to move or not to move with the draw-head in the following manner: In front of this drawbar f there is cut through the draw-head a passage, 9, through which slides a block, 71, that has a recess, i, cut or formed therein,the recess being a little larger than the head f of the draW-barf,and the block being sufficiently wide to afford a recess of sutlicicnt depth to allow the head f of the draw-bar to recede therein when the draw-head is forced backward. This block It preferably operates in a vertical position, and has on its upper ends lateral wings to support it in its seat in the draw-head. To raise or lower the block 7i,so as to bring the recess '5 opposite or not opposite the head ofthc draw-bar, and thus prevent or effect the application of the brakes, as hereinafter described, any suitable device may be employed; but I have shown a construction which is well adapted for the purpose. in this arrangement a lever, j, is pivoted to a suita' ble support under the draw-head, which lever at one end extends under the lower end of the block h and at its other end extends out to the end of the car, where it is attached to a suitable operating-rod, k, which runs up the side ofthc car and is held in the desired position by a suitable catch. By raising or lower ing this rod k the block it is raised or lowered, as the block rests on the lever or is attached to it. If the block 71- is thus raised, so as to bring the recess 2' opposite the head fef the draw'banthen the draw-head can reeede without affecting the draw-bar and the brakes which are operated by the latter; but if the block is lowered the thrust of the draw-head is transmitted to the draw-bar, and it moves with the former, applying the brakes. If desired, the block may be so arranged that the recess is opposite the draw-bar head when the block is lowered instead of when raised, as heretofore described.

In the rear of the draw-head a is the usual draw-head spring or springs, Z, held between suitable follower-plates, in, through which passes the drawbarf. \V hen the draw-bar does not extend farther than the rear followerplate, as described in my patent, No. 321,757, heretofore referred to, the form of brake-operating lever described in that patent may be employed; but there are some cars in which the draw-bars extend through to the center of the carbody, where the two bars are united, so as to transmit the pulling strain to the rear end of the car through the draw-head at that end. In this form of car devices, as the rear draw-head is drawn in by the pulling of the car, it is necessary to provide some system of brake operating levers which will, not be operated by the mere forcing in of one drawhead, as is the case with the form of brake described in my patent heretofore referred to and others of a like nature. To provide for this class of cars I employ the following an rangement: The draw-bars f, which extend through to the center of the car, are usually connected by ayoke,n,thebars passing through openings 0 in the plates 0 of the yoke, and having pins 1) in the rear of said plates, Fig. 4, so that each draw bar can move backward without affecting the yoke or the other drawbar; but if they are drawn forward the other must move with it. Under the car-body, and supported by the frame of the same at the point of normal position of the yoke a, a le ver, (1 q, is pivoted back of each draw-bar and at a suitable distance apart, so that one end of each lever bears against the end of a drawbar, Figs. 1, 5, and (i, and the other end, which forms the longer arm of the lever, is connected by a link, 0' r, to a brake-operating lover, s, the lever 1 being connected by the link to the inner end of the levers and the lever (1 by the link r to thelever s between the ends of the same and nearer to the inner end. This brake-operating lover s is connected at its outer end to the brake-bars in any suitable manner, th at shown in the drawings being well adapted for the purpose. In this arrangementthere is fulcrnmed on each brake-shoe bar 1 a lever, t t", the lever I, being connected at one end by a rod, a, to the outer end of the brakelever s and at its other end by a red, a, with one end of the lever 15', the other end of the latter beingeonnected to the truck I) by the rod e. As the power which is applied to the lovers q q is very great, in order to avoid too severe a strain on the pivots of these levers and too great grip of the blitkGSllOGS on the wheels I prefer to place a spring, to, at some pointin the rod or connection tr, so that the excess of power will be taken up by the sprin The operation of the brakes is as follows: When the car is being drawn along, the pull on the front draw-head is transmitted to the rear draw-head by the draw-barsf and yokes a, so that the rear draw-head is drawn in, which causes the end of its draw-bar to impinge against the end of the lever q, forcing the latter forward; but as the end of the other drawbar is also moved forward by the draft on it the lever 1 can also move forward, as shown in Fig. .5, and hence the force transmitted from the lever q to the brake-operating lever s cxpends itself in drawing forward the lever q, and the outer end of the brake-operating lever a is not affected, as shown in Fig. .3, as there is no force to resist the movement of the inner end of this lever, and hence there is no fulcrum on which it can turn to operate the brakes. 11', however, the block it is low cred at the draw-head in which itis placed or other devices arranged so that the backward movement of the draw-heads, caused by the impact of the preceding and following car thereon, is transmitted to the drawhars, the latter impinge in their backward movement against the ends of the levers q q, forcing them toward each other, which draws the inner ends of the brake-operating lever 8 forward and its outer end in the opposite direction, as indicated in Fig. 6, multiplying the amount of movement of the draw head and bars and effectively applying the brakes. On the other hand, if the block It is raised, so that the recess i therein is opposite the head f of the draw-bar, then the draw-head canmove back without affecting the former, and the brakeoperating apparatus remainspassive, as shown in Fig. 1.

As there are a large number of cars now in use which belong to the type for which my invention is designed, it supplies a brake which can be applied to these cars with but slight changes in their construction.

Having now described my invention, what I claim is 1. In a car-brake apparatus, the combination of a draw-head, a draw-bar, a movable recessed filling block or plate extending into the draw-head in front of the draw-bar, and suitable connections between said draw-bar and the brakes, substantially as and for the purpose set forth.

2. In a car-brake apparatus, the combination of a draw-head, a draw-bar, a movable recessed fillingiblock extending into the drawhead in front of said draw-bar, and lever mechanism for moving said filling-block, substantially as and for the purpose set forth.

3. In a car-brake apparatus, the combination of the draw-heads and the draw-bars moving with the same with a lever pivoted in the rear of each draw-bar and having one end in the line of movement of the same and connected at their other end to a single brakeoperating lever, substantially as and for the purpose set forth.

4. In a car-brake apparatus, the combination of the draw-heads and the draw-bars capable of movement with the same with a lever pivoted with one end in the line of movement of each draw-bar and connected by links at their other end to a brake-operating lever,

substantially as and for the purpose set forth.

5. In a car-brake apparatus, the combination of the draw-heads d, draw-barsf, moving with the same, levers q q, pivoted in the rear of said draw-bars, and a brake-operating lever, .9, connected by links 0' r to said levers qq,

substantially as and for the purpose set forth; 5

In testimony whereof I, the said ABRAM REESE, have hereunto set my hand.

ABRAM REESE.

Vitnesses:

N. S. S'rocKwELL, R031. D. TOTTEN. 

